subtracting out-of-state locality tax in MD
I was a full year resident in the state of Maryland in 2025. I worked in Philadelphia, PA, and per the reciprocity agreement with MD and PA, I paid MD tax on my earnings. So I don't need to file a PA state return.
The city of Philadelphia also charges me a local wage tax as a non-resident. It comes directly out of my paycheck. I believe I can ask for a credit from the state of Maryland for the tax I paid. When filling this out on Turbotax (Deluxe version, on a Mac), I am able to fill this out by claiming that it is tax from the state of PA, and entering the right amounts for the city of Philadelphia (basically: MD's view of the wages on which I was charged tax, and the amount of tax paid). When I check the 502CR I believe this all looks correct.
My questions:
1. Does this seem right, i.e., am I able to claim this credit and is this the way to do it?
2. The MD filing instructions say I need to include the tax return of the state in which I paid the tax that I'm claiming as a credit. In this case it's not a state, it's a locality (Philadelphia), and I have no return to include. I just have my W-2. Is including the W-2 sufficient, perhaps with a note?
3. Lastly, will I be able to file electronically to MD, or will the need to include the Phila/PA return block me from doing that?